Results 91 to 100 of about 250,310 (289)

Single string cavitation and swirling flow in a nozzle and a hollow-cone spray

Journal of Fluid Science and Technology
Single string cavitation (SC) and a swirling flow around it may occur in a fuel injector of diesel engines at the moment of low needle lift, if the tip of the needle valve is close to the nozzle entrance.
Dongping SHEN, Akira SOU, Yoshitaka WADA, Yoshiharu UEKI   +3 more
doaj   +1 more source

Comparative study of nasal cavity drug delivery efficiency with different nozzles in a 3D printed model [PDF]

PeerJ
Background Nasal sprays are widely used in treating nasal and sinus diseases; however, there are very few studies on the drug delivery efficiency of nasal sprays.
Shengjian Fang, Xiaoqing Rui, Yu Zhang, Zhangwei Yang, Weihua Wang   +4 more
doaj   +2 more sources

Engineering Carbon Cloth‐Catalyst Interfaces for Pt‐Free Hydrogen Evolution Across the Full pH Spectrum

Advanced Science, EarlyView.
Interfacial synergy between carbon cloth and Pt‐free metal/nonmetal catalysts enhances charge transfer, wettability, active site accessibility, and hydrogen bubble release, enabling efficient and durable hydrogen evolution across acidic, neutral, and alkaline media for scalable green hydrogen production.
Syed Mohammed Hubaish, Belal Salah, Khouloud Jlassi, Ali A. Abdelhafiz, Kamel Eid   +4 more
wiley   +1 more source

SPRAY DEPOSITION FROM AN UNMANNED AERIAL VEHICLE ON A COFFEE CROP [PDF]

Engenharia Agrícola
The use of unmanned aerial vehicles (UAVs) to apply pesticides has grown significantly, but technical data to support improvements in application efficiency are lacking, especially for perennial crops.
João P. A. R. da Cunha, Luciano F. da Fonseca, Cleyton B. de Alvarenga, Luana de L. Lopes, Rogério M. S. Martins Filho   +4 more
doaj   +1 more source

High‐Performance Piezoresistive Sensors via Pd/Sn‐Free Graphene‐Catalyzed Metallization of Thermally Repairable Microfiber Scaffolds

Advanced Science, EarlyView.
The multilayer fiber‐based PGC sensor, fabricated via graphene‐mediated electroless copper deposition, demonstrates high sensitivity, mechanical durability, and fast response speed. Additionally, it features low‐temperature thermal assisted recovery and thermal resistance, providing a promising platform for wearable electronic devices and IoT ...
ByungJun Kim, Su Bin Choi, Yeonwook Jeong, Jeong‐Won Yoon, Seung‐Boo Jung, Jong‐Woong Kim   +5 more
wiley   +1 more source

Effects of Elliptical and Circular Nozzles on Diesel Spray Characteristics Under High Ambient Density

Applied Sciences
In this paper, the macroscopic and microscopic characteristics of diesel spray with elliptical and circular nozzles were investigated under an ambient density of 65.6 kg/m3 by combining an optical test and numerical simulation method of VOF-Spray One-Way
Qinghai Sun, Run Zou, Liangyu Li, Huan Wen, Feng Li, Wei Yang, Tiexiong Su   +6 more
doaj   +1 more source

Printing‐Assisted Integration of Thermal, Fluidic and Electrical Components in Implants for Focal Brain Cooling

Advanced Science, EarlyView.
Extrusion‐based 3D printing of silicones and discrete electronic components are combined to create cortical implants for rodents that integrate thermal neuromodulation and electrical recording. Linked to an autonomous auxiliary driver unit, the system enables rapid, stable and localized hypothermia alongside ECoG recording.
Spencer Ryan Moore, Naomi King, Aruã Clayton Da Silva, Clare Howarth, Jason Berwick, Thomas E. Paterson, Ivan R. Minev   +6 more
wiley   +1 more source

CFD analysis of aeroponic nutrient spray characteristics for enhanced plant nourishment in sustainable agriculture

Smart Agricultural Technology
This paper presents a detailed Computational Fluid Dynamics (CFD) analysis of nutrient spray flow characteristics from an aeroponic nozzle for enhancing plant nourishment in sustainable agriculture systems.
Aeswin Lawrance, K. Vishnu Ram, R. Harish   +2 more
doaj   +1 more source

In Situ Generation of Gel Foam via Heat‐Accelerated Calcium Ion Release From Nano‐CaCO3 for Lithium‐Ion Battery Fire Suppression and Prevention

Advanced Science, EarlyView.
We present a heat‐accelerated in situ crosslinking strategy to create an alginate gel foam for lithium‐ion battery fire suppression. At ambient temperature, the formulation maintains low viscosity for easy foam generation. After exposure to fire, δ‐gluconolactone hydrolysis accelerates, enabling rapid Ca2+ release from CaCO3 and rapid ionic ...
Xiaoyang Yu, Cuiping Li, Mingjun Xu, Man Pun Wan   +3 more
wiley   +1 more source

Modelagem da transferência de calor com e sem mudança de fase no resfriamento por spray (Spray Cooling) [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2010Nos últimos vinte anos, com a progressiva miniaturização de quipamentos e sistemas de engenharia e ...
Lückmann, Antônio José
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